I honestly wouldn't have pegged this as a TF2 rip-off if the trailer had been done in a more unique style. Hopefully the gameplay mechanics will be different enough to make it it's own game, cause it looks fun.
I dunno, I didn't see the Spy - and fuck knows, after what felt like twenty minutes of sniper action, I really really REALLY wanted to see a Spy decloak and backstab that mother.